PDF malware analysis — malicious · 309024347d996887

MALICIOUS

PDF

56.4 KB Created: 2021-04-20 11:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: 3ad589f91f84d137e0de0c9cf48a4fdf SHA-1: 0eeebe563faddc201d00408c3fb9d1d250b18831 SHA-256: 309024347d996887a92e69553ba3a5be747089cc62e6581470db8b86de34d0a2

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm on disposable hosting and contains external URIs. Although no scripts were extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious sites, likely as part of a phishing or malware distribution campaign. The presence of multiple unknown URLs supports this assessment.

Machine Learning

Nyx PDF Classifier malicious score 0.6200

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://extranet.blanchisserie-toulousaine-de-sante.com/sites/extranet.blanchisserie-toulousaine-de-sante.com/files/documents/justificatifs/6659556688.pdf In PDF document text
- http://spotlight-sites.com/sites/default/files/webform/jalipoxelelikepobolid.pdfIn PDF document text
- https://www.jsif.org/sites/default/files/webform/nozixedexifanozavarojiro.pdfIn PDF document text
- http://seiary.com/sites/default/files/webform/rec/6045441545.pdfIn PDF document text
- https://www.termis.org/system/files/webform/98565071062.pdfIn PDF document text
- https://vectorcorp.net/sites/default/files/webform/resume/86038084563.pdfIn PDF document text
- http://www.guninetwork.org/system/files/webform/heirri_proposals/nuxikovevevugodir.pdfIn PDF document text
- https://www.blplegal.com/sites/default/files/webform/58709767715.pdfIn PDF document text
- https://www.a1touchsolution.nl/sites/default/files/kobovigub.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=blood+bowl+2+teams+wikiPDF link annotation
- https://ubmemeaensoprod.s3.amazonaws.com/ifsec_international/call_for_papers/2021/03/86402477901.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/rutepirunumobapof.pdfIn PDF document text
- https://lib.asu.edu/system/files/webform/bejugejotofetuxiw.pdfIn PDF document text

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